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    Illustration of bacteria causing bacterial pneumonia in alveoli. — Stock Photo
    Illustration of bacteria causing bacterial pneumonia in alveoli.
    Streptococcus pneumoniae causing bacterial pneumonia in alveoli. — Stock Photo
    Streptococcus pneumoniae causing bacterial pneumonia in alveoli.
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Alveoli structure and blood supply — Stock Photo
    Alveoli structure and blood supply
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Human alveoli anatomy — Stock Photo
    Human alveoli anatomy
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Human alveoli anatomy — Stock Photo
    Human alveoli anatomy
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Prostate showing a concretion of secretory materials — Stock Photo
    Prostate showing a concretion of secretory materials
    Alveoli structure and blood supply — Stock Photo
    Alveoli structure and blood supply
    Respiratory system of adult — Stock Photo
    Respiratory system of adult
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Blood vessel in the lung — Stock Photo
    Blood vessel in the lung
    Normal human alveoli — Stock Photo
    Normal human alveoli
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Alveoli structure and blood supply — Stock Photo
    Alveoli structure and blood supply
    Illustration of bacteria causing bacterial pneumonia in alveoli. — Stock Photo
    Illustration of bacteria causing bacterial pneumonia in alveoli.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Human alveoli anatomy — Stock Photo
    Human alveoli anatomy
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). A pulmonary capillary containing two red blood cells (red) and three platelets (blue). A basement membrane (pink) surround the endothelium separating it from the alveolar epithelium
    Human alveoli anatomy — Stock Photo
    Human alveoli anatomy
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Lung tissue, coloured transmission electron micrograph (TEM). of a pulmonary capillary containing two red blood cells (red) and three platelets (brown). A basement membrane (cyan) surround the endothelium separating it from the alveolar epithelium — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM). of a pulmonary capillary containing two red blood cells (red) and three platelets (brown). A basement membrane (cyan) surround the endothelium separating it from the alveolar epithelium
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia. — Stock Photo
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia.
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia. — Stock Photo
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia.
    Prostate showing a concretion of secretory materials — Stock Photo
    Prostate showing a concretion of secretory materials
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia. — Stock Photo
    Computer illustration of rod-shaped bacilli bacteria inside alveolus of lung, causing lower respiratory tract infection and bacterial pneumonia.
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Lung tissue, coloured transmission electron micrograph (TEM). — Stock Photo
    Lung tissue, coloured transmission electron micrograph (TEM).
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Bacterial lung infection, illustration. — Stock Photo
    Bacterial lung infection, illustration.
    Normal human alveoli — Stock Photo
    Normal human alveoli
    Macrophages engulfing tuberculosis bacteria — Stock Photo
    Macrophages engulfing tuberculosis bacteria
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place. — Stock Photo
    False-colour scanning electron micrograph of a section of healthy lung tissue, showing the microscopic air sacs (alveoli) where gas exchange takes place.
    Computer illustration of alveoli in human lungs — Stock Photo
    Computer illustration of alveoli in human lungs
    Medical illustration of alveoli on black background — Stock Photo
    Medical illustration of alveoli on black background
    Tumour filling an alveolus of the human lung — Stock Photo
    Tumour filling an alveolus of the human lung